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The Poly-Guard® Series External Gear Pump has a rugged Stainless Steel body lined with a chemically-resistant fluoropolymer and contains all non-metallic internal components. This makes the Poly-Guard an excellent choice for pumping highly corrosive inorganic acids, alkalis and salts, as well as for high-purity services, where contact with metallic components must be avoided. The Poly-Guard is available in 9 sizes with capacities ranging from 1.4 to 25 GPM. |
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Models P1 thru P4 |
Models P5 thru P9 |
Mag-Drive, Close-Coupled |
Mag-Drive, Close-Coupled |
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P-SERIES MODEL |
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P1 |
P2 |
P3 |
P4 |
P5 |
P6 |
P7 |
P8 |
P9 |
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Port Connections:
ANSI 150# RF FLG
DIN PN16 RF FLG
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in
mm
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3/4
20 |
3/4
20 |
3/4
20 |
3/4
20 |
1 ½
40 |
1 ½
40 |
1 ½
40 |
1 ½
40 |
1 ½
40 |
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Max Flow Rate * |
GPM |
1.4 |
2.3 |
3.1 |
4.9 |
8.5 |
11.3 |
14.2 |
18.8 |
25.0 |
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Max Differential Pressure |
PSI |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
100 |
80 |
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Max Discharge Pressure ** |
PSIG |
275 |
275 |
275 |
275 |
275 |
275 |
275 |
275 |
275 |
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Max Temperature |
°F |
200 |
200 |
200 |
200 |
200 |
200 |
200 |
200 |
200 |
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Min Temperature |
°F |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
32 |
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Max Speed |
RPM |
1750 |
1750 |
1750 |
1750 |
1750 |
1750 |
1750 |
1750 |
1750 |
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NPSHR @ Max Speed |
ft |
2.0 |
2.0 |
2.0 |
3.0 |
5.2 |
5.2 |
4.0 |
3.0 |
3.0 |
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Weight (without motor)
Mag, Close-Coupled
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lbs |
42 |
42 |
42 |
42 |
63 |
63 |
63 |
70 |
70 |
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* Typical Flow Rate @ 1750 RPM and 0 PSI (bar) Differential Pressure.
** Flange Pressure derating is required above 100°F.
RF FLG = Raised Face Flanges (Current P-Series Pumps have Universal ANSI/DIN Flanges)
NPSHR = Net Positive Suction Head Required
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COMPONENT |
MATERIALS |
Housings |
303 Stainless Steel/PFA-Lined |
Containment Can |
304L Stainless Steel/PTFE-Lined 1 |
Inner Magnet |
SmCo/Carbon Steel/PFA-Lined |
Gears |
PEEK or Kynar (PVDF) |
Keys |
PEEK or Kynar (PVDF) 2 |
Wear Plates |
Carbon-60 or Silicon Carbide |
Bearings |
Carbon-60 or Silicon Carbide |
Bearing Pins |
Teflon (PTFE) |
Shafts |
Silicon Carbide |
O-Rings |
EPDM, Viton or Kalrez |
1 - Obsolete Alloy-C/PFA-Lined Containment Can is available for Replacement Cartridges in existing pumps. |
2 - Key material will match Gear material. |
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